I never thought of it before, _______ all that my parents had done for me for granted.
#90734
A
taking
B
taken
C
to take
D
took
推荐题目
.From his ________ voice on the phone I know everything is going under way.
#97931
A
satisfactory
B
satisfying
C
satisfied
D
satisfaction
Do you consider it any good _____ psychology?
#90747
A
to learn
B
to have learned
C
learning
D
having learned
Do you know we have much difficulty ____ the work on time.. 
#97766
A
on finishing
B
finishing
C
to finish
D
at finishing